derek.holloway
7502bf64a4
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77 lines
2.4 KiB
ArmAsm
77 lines
2.4 KiB
ArmAsm
# REQUIRES: aarch64
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# RUN: llvm-mc -filetype=obj -triple=arm64-apple-darwin %s -o %t.o
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# RUN: %lld -arch arm64 -lSystem -U _objc_msgSend -o %t.out %t.o
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# RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
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# RUN: %lld -arch arm64 -lSystem -U _objc_msgSend -o %t.out %t.o -dead_strip
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# RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
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# RUN: %lld -arch arm64 -lSystem -U _objc_msgSend -o %t.out %t.o -objc_stubs_fast
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# RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s
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# RUN: %lld -arch arm64 -lSystem -U _objc_msgSend -o %t.out %t.o -objc_stubs_small
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# RUN: llvm-otool -vs __TEXT __stubs %t.out | FileCheck %s --check-prefix=STUB
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# RUN: llvm-otool -vs __TEXT __objc_stubs %t.out | FileCheck %s --check-prefix=SMALL
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# Unlike arm64-objc-stubs.s, in this test, _objc_msgSend is not defined,
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# which usually binds with libobjc.dylib.
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# 1. -objc_stubs_fast: No change as it uses GOT.
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# 2. -objc_stubs_small: Create a (shared) stub to invoke _objc_msgSend, to minimize the size.
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# CHECK: Contents of (__TEXT,__objc_stubs) section
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# CHECK-NEXT: _objc_msgSend$foo:
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# CHECK-NEXT: adrp x1, 8 ; 0x100008000
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# CHECK-NEXT: ldr x1, [x1, #0x10]
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# CHECK-NEXT: adrp x16, 4 ; 0x100004000
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# CHECK-NEXT: ldr x16, [x16]
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# CHECK-NEXT: br x16
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# CHECK-NEXT: brk #0x1
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# CHECK-NEXT: brk #0x1
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# CHECK-NEXT: brk #0x1
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# CHECK-NEXT: _objc_msgSend$length:
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# CHECK-NEXT: adrp x1, 8 ; 0x100008000
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# CHECK-NEXT: ldr x1, [x1, #0x18]
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# CHECK-NEXT: adrp x16, 4 ; 0x100004000
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# CHECK-NEXT: ldr x16, [x16]
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# CHECK-NEXT: br x16
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# CHECK-NEXT: brk #0x1
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# CHECK-NEXT: brk #0x1
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# CHECK-NEXT: brk #0x1
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# CHECK-EMPTY:
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# STUB: Contents of (__TEXT,__stubs) section
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# STUB-NEXT: adrp x16, 8 ; 0x100008000
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# STUB-NEXT: ldr x16, [x16]
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# STUB-NEXT: br x16
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# SMALL: Contents of (__TEXT,__objc_stubs) section
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# SMALL-NEXT: _objc_msgSend$foo:
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# SMALL-NEXT: adrp x1, 8 ; 0x100008000
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# SMALL-NEXT: ldr x1, [x1, #0x18]
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# SMALL-NEXT: b
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# SMALL-NEXT: _objc_msgSend$length:
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# SMALL-NEXT: adrp x1, 8 ; 0x100008000
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# SMALL-NEXT: ldr x1, [x1, #0x20]
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# SMALL-NEXT: b
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.section __TEXT,__objc_methname,cstring_literals
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lselref1:
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.asciz "foo"
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lselref2:
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.asciz "bar"
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.section __DATA,__objc_selrefs,literal_pointers,no_dead_strip
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.p2align 3
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.quad lselref1
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.quad lselref2
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.text
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.globl _main
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_main:
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bl _objc_msgSend$length
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bl _objc_msgSend$foo
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bl _objc_msgSend$foo
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ret
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